Vulnerability-Lookup

CVE-2026-92971 (GCVE-0-2026-92971)

Vulnerability from cvelistv5 – Published: 2026-09-17 13:43 – Updated: 2026-09-17 14:29

Title

InternLM LMDeploy through 0.17.0 Assertion Denial of Service

Summary

InternLM LMDeploy through 0.17.0 contains a reachable assertion vulnerability in the DistServe decode migration loop that allows unauthenticated attackers to terminate the inference engine. Attackers can submit a migration_request with an empty remote_block_ids list to trigger an AssertionError that crashes the engine loop and causes subsequent inference requests to fail.

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-17 14:28 UTC

CWE

CWE-617 - Reachable Assertion

Assigner

VulnCheck mitre root

References

6 references

URL	Tags
https://github.com/InternLM/lmdeploy/issues/4965	issue-tracking
https://github.com/InternLM/lmdeploy/blob/v0.17.0…	technical-description
https://github.com/InternLM/lmdeploy/blob/v0.17.0…	technical-description
https://github.com/InternLM/lmdeploy/blob/v0.17.0…	technical-description
https://github.com/InternLM/lmdeploy	product
https://www.vulncheck.com/advisories/internlm-lmd…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
InternLM	lmdeploy	Affected: 0 , ≤ 0.17.0 (semver) cpe:2.3:a:internlm:lmdeploy::::::::

Date Public

2026-09-14 00:00

Credits

Jiapeng Li Jiajia Liu

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-92971

Vulnerability from fkie_nvd - Published: 2026-09-17 14:18 - Updated: 2026-09-17 15:17

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://github.com/InternLM/lmdeploy
	disclosure@vulncheck.com	https://github.com/InternLM/lmdeploy/blob/v0.17.0/lmdeploy/pytorch/engine/engine_loop.py#L560-L564
	disclosure@vulncheck.com	https://github.com/InternLM/lmdeploy/blob/v0.17.0/lmdeploy/pytorch/utils.py#L187-L214
	disclosure@vulncheck.com	https://github.com/InternLM/lmdeploy/blob/v0.17.0/lmdeploy/serve/openai/endpoints/completions.py#L130-L136
	disclosure@vulncheck.com	https://github.com/InternLM/lmdeploy/issues/4965
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/internlm-lmdeploy-through-0.17.0-assertion-denial-of-service
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/InternLM/lmdeploy/issues/4965

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/InternLM/lmdeploy"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/InternLM/lmdeploy/blob/v0.17.0/lmdeploy/pytorch/engine/engine_loop.py#L560-L564"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/InternLM/lmdeploy/blob/v0.17.0/lmdeploy/pytorch/utils.py#L187-L214"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/InternLM/lmdeploy/blob/v0.17.0/lmdeploy/serve/openai/endpoints/completions.py#L130-L136"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/InternLM/lmdeploy/issues/4965"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.vulncheck.com/advisories/internlm-lmdeploy-through-0.17.0-assertion-denial-of-service"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/InternLM/lmdeploy/issues/4965"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-617"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

GHSA-3J7H-8QQW-4P7V

Vulnerability from github – Published: 2026-09-17 15:32 – Updated: 2026-09-17 15:32

Details

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

8.7 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2026-92971"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-617"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-17T14:18:03Z",
    "severity": "HIGH"
  },
  "details": "InternLM LMDeploy through 0.17.0 contains a reachable assertion vulnerability in the DistServe decode migration loop that allows unauthenticated attackers to terminate the inference engine. Attackers can submit a migration_request with an empty remote_block_ids list to trigger an AssertionError that crashes the engine loop and causes subsequent inference requests to fail.",
  "id": "GHSA-3j7h-8qqw-4p7v",
  "modified": "2026-09-17T15:32:17Z",
  "published": "2026-09-17T15:32:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-92971"
    },
    {
      "type": "WEB",
      "url": "https://github.com/InternLM/lmdeploy/issues/4965"
    },
    {
      "type": "WEB",
      "url": "https://github.com/InternLM/lmdeploy"
    },
    {
      "type": "WEB",
      "url": "https://github.com/InternLM/lmdeploy/blob/v0.17.0/lmdeploy/pytorch/engine/engine_loop.py#L560-L564"
    },
    {
      "type": "WEB",
      "url": "https://github.com/InternLM/lmdeploy/blob/v0.17.0/lmdeploy/pytorch/utils.py#L187-L214"
    },
    {
      "type": "WEB",
      "url": "https://github.com/InternLM/lmdeploy/blob/v0.17.0/lmdeploy/serve/openai/endpoints/completions.py#L130-L136"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/internlm-lmdeploy-through-0.17.0-assertion-denial-of-service"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-92971 (GCVE-0-2026-92971)

FKIE_CVE-2026-92971

GHSA-3J7H-8QQW-4P7V

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